Valve.



G. N COON & 'J. CANTLON. VALVE.

APPLICATION rum) we. 1, 1910.

990.1 1 1 Patented Apr. 18, 1,911.

CHARLESN'. COON AND JOHN CAN'I'LON, OF MATTOON, ILLINOIS.

VALVE.

Specification of Letters Patent.

Patented Apr. 18, 1911.

Application filed August 1, 1910. Serial No. 574,800.

7 '0 all whom it may concern:

Be it known that we, Ci-mnnns N. Coon and JonN CANTLON, citizens of theUnited States, residing at Mattoon, in the county of Coles and State ofIllinois, have invented certain new and useful l n'ipmvcments in Valves;and we do declare the following to be a toll, cl var, and exactdescription of the invention, such as will enable others skilled in theart to which it appm'tains to malce and use the same.

This invention relates to improvements in globe valves.

One object of the invention is to provide a valve of this characterhaving a double faced valve seat and a valve adapted to be reversedwhereby when one side of the same and one faceof the seat become worn tosuch an extent as to impair their usefulness, the valve may be reversedto engage the onused face of the scat thereby greatly increasing thelife and usefulness of the valve.

Another object is to provide means where-- by the valve may beheld in anopen position when desired.

With the foregoing, and other objects in view, the invention consists ofcertain novel features of construction combination -.and

. arrangement of parts as will be more fully described and particularlypointed out in the appended claims.

In tho :urcompanying drawings: l igure 1 is a vertical longitudinalsectional view of a valve constructed in accordance with the invention,and showing the valve arranged in one position, Fig. 2 is a similar viewshowing the valve arranged in its reverse position; and, Fig. 3 is adetail sectional view of the valve removed from the casing.

In the present instance the invention is shown in the form of a globevalve con1prising: a casing l, which may be of the usual or any desiredshape and in which is formed the usual partition 2. In the partition 2is formed a threaded passage 3, in which is screwed a tubular valve seat4-, the upper edge of which projects above the partition 13 and flangedto form a shoulder 55, which engages the upper side of the partition asshown. The upper edge of the seat lis beveled or inclined on its innerand outer sides to form inner and outer valve receiving faces (3 and 7.

On the upper side of the valve casing is formed an n wardly projectingtubular extension 8, w ich is threaded on the outer .as shown.

surface of its upper end and is adapted to receive a hood 9 into whichthe stem of the valve projects as will be hereinafter described. Thehood 9 is provided with a flared lower end which provides a seat 10 fora nut '11 which is engaged with said seat and with the upper end of thetubulan extension 8 of the valve casing. The lower end of the hood 9 isprovided with an annular flange 12 with which is engaged a cap nut 13,said nut having a screw threaded engagement with the extension 8 wherebysaid.

hood is securely clamped to the valve casing. The nut 11 has a taperedupper side which fits into the flared lower end of the hood and isbeveled on its lower. edge to fit in the beveled upper end of theextension 8, Silltl end being thus securely held in place.

In the cxtcnsion 8 ol the valve casing and The threads of the portion14- of the stem,

are inclirurd'on their lower sides only and engage similarly formedthreads in the nut 11. By forming the threads on the stem and in the nutin this manner the square or flat upper portion of the thread willreceive a the thrust of the valve.

The upper portion of the lower section of the valve stem is squared, asshown at 17, and engaged with a squared socket 18 formed in the lowerportion of the upper section 19 of the valve stem. The upper portion l!)of the valve stem is of less diameter than the lower portion 18 andthereby forms a shoulder, the width of which is increased by an annularflange 20 formed on the upper edge of the portion 18 ot' the stem ()nthe flanged and shouldered upper end of the lower portion 18 of thestern is formed one member ot a hall race, the opposite member of whichis formed on the lower side ol a packing ring 91. which is arranged onthe reduced portion ill) of the stem. In the ball race thus formed isarranged an annular series or bearing balls 22 whereby ananti-"frictional engagement is provided between the packinp ring 21 andthe valve stem. On the threaded upper end of the hood 9 is screwed apacking nut or gland 23 in which is arranged a suitable packing 24:whereby a fluid tight joint is provided for the valve stem. The upperend of the stem is squared to receive any suitable form of wrench orhandle.

Secured to the lower end of the valve stem and adapted to be engagedwith the valve seat 4 is a reversible valve 25 comprising a cylindricalbody portion 26 having in one side a circular recess 27 the side wallsof which. are beveled or inclined as shown. On the opposite side of thebody portion 26 is formed a tapered projection 28 which, when the valveis arranged in the position shown in Fig. 1, is adapted to engage theinner face 6 of the valve seat when the valve is in closed position.When the valve is in the position shown in Fig. f the drawings and isclosed, the tapered or inclined walls of the recess 27 will engage theouter beveled face 7 of the seat. On the opposite sides of the valve areformed T shaped lugs 29 which are adapted to engage the T shaped slot 16in the head 15 on the lower end ofthe valvestem thereby securing thevalve to the stem in either of-its positions. By thus forming the valveand seat it will be readily seen that the valve may be quickly reversedwhen one side or the other has become worn, thus presenting a new orunworn working surface for engagement with the unused face of the valveseat. It will also be readily seen that by screwing the lower portion 14of the stem through the nut at that the valve may be adjusted and heldin an open or closed position.

From the foregoing description taken'in connection with the accompanyingdrawings, the construction and operation of the. invention Will bereadily understood without requiring a more extended explanation.

Various changes in the form, proportion and the minor details ofconstruction may be resorted to without departing from the principle orsacrificing any of the advan; tages of the invention as defined in theappended claims.

Having thus described our invention what claim is: Z

1. in a valve of the character described, a casing, a hood having adetachable engagement 'with said casing, a tubular valve seat removablysecured in said casing, said seat having inner and outer valve receivingfaces, a valve having on one side a tapered projection adapted to beengaged with the inner face of said seat when in one position and havingon its opposite side a tapered recess adapted to be detachably connectedto the valve in either of its positions, a nut secured between said hoodand valve casing, threads formed on the lower section of the valve stemwhereby said section has a movable cngagement' with said nut, saidthreads having an inclination on their lower sides and having flat uppersides, 'a packing nut arranged on the upper end of said hood, a packingring arranged in said nut, and an antifrictional bearing arrangedbetween said packing ring and the upper section of the valve stem.

2. 'In a valve of the character described, the combination of a casing,a tubular valve seat removably secured in said casing, said seat havinginner and outer valve seating faces, a valve having on one side atapered projection adapted to be engaged with the inner face of saidseat when in one position and having on its opposite side a taperedrecess adapted to engage the outer face of said seat when in anotherposition, T-shaped lugs formed on the opposite sides of said valve, avalve stem having a slot in its lower end to engage either of said lugs,and means for operating said stein.

In testimony whereof we have herei'into set our hands in presence of twosubscribing witnesses.

CHARLES N. coon. JOHN 'oANTLon.

Witnesses:

F. A. SNYDER, T. O. FREEMAN.

